Calculating-machine.



. N. STAFFORD.

GALGULATING MACHINE. APPLIOATION PILBDJUNB 14, 1911.

Patented May 14, 1912.

@@QQ @@Q@ "@@QQMMQQCQI 564/ WWW/6W Anon/VHS N, STAFFORD. GALGULAMNGMAG-EINE. lAPPLOATION EILD JUNE lf, i911.

Patented May i4, 1.9ML

W/V/SSSESV N. STAFFORD.

GALGULATING MACHINE. APPLICATION rLBD JUNE. 14, 1911.

Patented May 114.', 8 SHEETS-SHEET S APPLICATION FILED JUNElfl, 1911.

N. STAFFORD.

GALGULATmG MAGHINB.

Pamed May 14, 1191.2.,l

@#MMMMWMMFMW O/ N. STAFFORD.

GALGULATING MACHINE. APPLICATION FILED ruim 14, 1911.

Patented May 14, i.

8 SHEETS-SHEET 5.

WIT/VESSES IVW/Nimh? 'N. STAFFORDa CLGULATING MACHNE. "MPMGA'MON FILEDJUNE 14, 1911. l Patented May 14, 1912. SSHBETS-SHBET 7.

fin w N. STAFFORD. l

GALCULATING MACHINE. APPLICATION FILED yJUNE 14', 1911.

Patented May 14, 1912.

8 SHEETS-SHEET 8.

NIL.

Hy /f/ Mmm/ Era l .tion and cost.

' unirsi) srains PATENT onirica.

NnLsoN STAFFORD, orNEW YORK, N. Y.

CALCULATING-MACHINE.

'To all 'whom t may concern:

'ef it known that I, NELSON STAFFORD, a citizen of the United States,and a residentof the city of New York, borough of Brooklyn, in thecounty of Kings and State of New York, have invented a new and ImprovedCalculating-Machine, of which the following is a full, clear, andex'actdescription.

Among the principal objects which the present invention has in view are:to provide a machine of the character named wherein are imprinted incolumn forni a'succession of numbers, and wherein may be imprinted atwill the totals of column sections, Or the resnlt'of a succession ofsuch totals; to provide means for exposing to\view at will thecomposited number designed for addition to the column and the numberindicating the total of the column inclusive of the number composed foraddition thereto; and' to popularize machines bfthisy character bysimplifying and economizing the construe lOne embodiment of the presentinvention -is disclosed in the structure illustrated in the accompanyingdrawings, in which like characters of reference denote correspondingparts in all the views, and in which- Figure 1 is a horizont-al sectionof'a ma chine constructed and arranged in accord' ancelf with thepresent invention, the section .being taken on the lines 1 1 1n Figs. 2and P); Fig. 2 'is a vertical cross section taken on theline 2 2 'inFig. 1; Fig. B'is a vertical.

cross section taken on the line 3-3 in Fig. 1.; Fig. 4t is a verticalcro-ss section taken on the line M in Fig. 1; Fig.v 5 is averticallongitudinal section' taken on the line 5-5 in Fig. 2; Fig. 6 isa vertical longitudinal section taken on the line 6-6 in Fig. 2;'

...Fig is a Vecal longitudinal section ta-ke'non the line 6 -6 in Fig.2, showing the paper carrier land printing devices moved to expose thetabula-ting wheels; Fig. 8 is a detail view in vertical cross sectionshow ing the pperatmg keys and type setting .mechanism (connectedtherewith; Fig. 9 is fa detail view, on anvenlarged seale'and in crosssection," of two juxtaposed. type wheels; Fig. 1G isaview sinrlarto Fig.9, showing tliempper orto'ta'lizi type wheels; Figs, 11 and 12 aredetailltiews, showing in side Specication of Letters Iatent. l

Patented May 14:, 1912.

Application led June 14,1911. Serial-No. 633,015.

elevation the type wheels disposed in the successive printingarrangement, together with the mechanism for feeding the said wheels;Fig. 13 is a detail view, in vertical section, showing one of the seriesof friction driving wheels for resetting the type wheels of thetotalizing mechanism together with operative mechanism therefor; Fig. 14is a detail View, in vertical section, taken on the line lll- 14. inFig. 6, showing a means for manually' feeding the tabulating paper; Fig.15 is a vertical cross section taken on the line l5-15 in Fig. 6,showing the means for automatically feeding the tabulating papercoincident with the printing'of a number; Fig. 16 is a detail view ofthe mechanism for returning to normal position the totalizer and addingmechanism; and Fig. 17 is a detail View showing a fragment of the paperribbon formed by the operation of a calculating machine constructed inaceordance with the present invention.

'i The instrumentalities conjoined to form the present machine arenaturally grouped to constitute individualized mechanisms. which, forthe purpose of simplification in the following description are set forthin their correlated order, and the mechanisms are treated as units inthe completc lwnachine. having for that purpose assigned to themarbitrarily certain distinctive naines. Thus` by t-heterm addingmechanism will be understood a certain series of coordinately arrangedtype wheels the periphery of the wheels being provided with typecharacters set out from the said wheels, and 'a corresponding series ofselective operating mechanisms for setting the said wheels in printingposition, and a resetting mech- -anisin for the said wheels operable atthe termination of the transfer of each number y to a listingI paper. Bythe term totalizing` mechanism will be understood a second series oftype provided wheels cordinately arranged and connected with the addingmechanism by means of transmission mechanism adapted to effect aprogressive moveieiit only in the said wheels of the totalizingmechanism. By the term resetting mechanism will be understood two groupsof instrumentalities operatively connected with reference to the addingmechanism and .the totahzing mechanism; and arranged for heads withnumerals ranging from one to nine manual manipulation 'selectivelyandindepeudently to reset to zero the members of each series o1 wheels.By the term i printing and feeding mechanisms will be imderstood groupsof instrumcntalities for imprinting' in eoliunn order characters on arecord sheet corresponding to the type set out from the face of thewheels in comfosited order, each of said groups of instruiuentalitiesbeing provided with manually selective and operative means. Todistinguish the ii'ulividual meu'iliers of each group the designatingnul'neral provided therefor is in turn identitied by a groupedarrangeu'ient: thus. the designating numerals assigned to the elementsot the first named group, the adding mechanism. willtall with- `vin the100 denomination: the second group within the `200 denomination. and soon.

Th ffl/(Hug 'rriccltrt/n.sm.-ln the present mechanism there is employeda series of type setting bars. The number of bars cor-- responds to thetotal number kot the characters to be used in the printing columns.Normally the bars 101'are disposed in the position shown in Fig. 2 thetree end being lifted against the guard 102 by the weight 1025 withwhich each of the bars is provided. Each bar is loosely pivoted on` 'avshaft 101 which shaft is tixedly imumted in standards 105 disposed asshown in Fig. 1 on the base plate 100. Disposed in line with anddirectly above eaeh ot the bars 101 is a series of plungers 107. Theplungers 107 are extended through perfor-ations formed in the inclinedtable 100. and are provided tliereabove with the 100. The heads 100 areequipped successively.

Each of the plungers 107 is slidably mounted in guiding perforationsformed lin the plates 110. The plungers are each provided with a pin 111extended through the plunger to form a seat for" the upper end of eacho1 the coiled springs 112.` T springs 112 are extended about to enfoldthe plungers 107".y and are employed to lift the said plungers to thenormal position disclosed in Fig. 1Q. When the plungers are depressedthe springs 112 yield to permit this movement. The extent to which theplungers are depressed is preferably unified, and this by providing eachof the plungers with a fixed pin 11S/adapted vfor impinge ment upon theupper plate 110 as a block to prevent the further downward movement ofthe depressed plunger. ln thismanner there is secured ior each ot theplungerx an accurate similarity in the extent of the movementv of the.'plunger. Where the plunger extends below the lower plate 110 it isprovided with a presser foot 114. lt is de'- signed that the extensionof the lower ends ot the phmger 107be such that relatively of thedrawings,l

he coiled 'sh`a`ll`rest in contact'with the bar 101.

shank of a connectingfscrew 118.

the foot 114 assumes an arrangement in a line substantially parallel tothe upper surface of the bar 101.

It, is designed that in the normal uplitted osition ofthe plungers 107the feet 114- r1`he accuracy of adjustmentrequires an interposed memberbetween each of the plungers and the bar 101, and this is furnished by aseries of set pins 115, as seen in the drawings. One such pin 115 isprovided for each plunger. The pinsl 115 are preferably provided with ascrew thread to register with the threads of the perforations formed inthe bar 101, for which purpose the body of the said bar is increased toform a turret 110. ly this arrangement. the pins 115 may be manipulatedto secure great delicacy in the adjustment of the particular plunger tothe bar 101.

In spacing the plungcrs 107 eac-h from the other care is exercised thatthe resultant movement of the bar 101 be proportioned in acturate andequal gradations trom the first and successively to the last of theplungers 107. That is. if thefree end of the bar 101 is depressed fromthe normal at rest position a certain distance, it will be moved twicethe distance by the depression of the plunger which is second of theseries. and three times the distance by the depression of the plungerwhich is third of the series, and so on.

At the free end of each bar 101 is formed a slot 117 through whichisextended the Each screw 118 is set out from the side of a rack bar 119,which bar is slidably mounted in a turret 120 formed in the guide bar121. This construction is best seen in Fig. 4 of the drawings. The rackbars 119 are provided with a straight toothed section 122. the teethwhereof on each bar are meshed with the'teeth of a gear wheel 123, whichgear wheel 123 is xedly connected with a type wheel-124. The type wheels124 are equal in number to the bars 101. eaeh har being independentlyand operatively con nected with each type wheel. The extent of theoperation of each type wheel, as above indicated, is dependent upon theselection of the plunger 107 which is depressed. The

type carrying bosses'125 with which each -wheel is provided range innumerals from one to nine and an added naught, or ten such bosses Vtoeach wheel.

The-citent of thel .depression of the bar 101 lessens as the ian pointof impingement of the phmgers 107 is y removed from the shaft 104;. Thusthe plunger farthest removed fromthe shaft 104 is provided with thedesignating character 1. The depression of this plunger operates todepress the free end of the oar 101 to move thewheel 124 one typespace,'or if the wheel be previously set atl naught the wheel will bemoved to advance in printing i .Wheel The Wheel is iiXedly attached tothe 15 'is extended operates to draw downward the,

A'will bemoved to -present the boss 125 bear- `103 at the outer -end ofthe bar 101 which rack bar 119.' The pavvls 130 are so set that Thedepression of the arm 134 and the porl 'short extension pin 135. Thepin135 is .ein

position the numeral 1. It the fourth' plunger which4` bears thedesignating numeral 4 be'novvdepressed the Wheel 124 ing the printingnumeral 4, 1 and so on.. 4When each of the plungers 107 is released it-is lifted by the spring 112 and 'the Weight has been depressed With thesaid plunger.

The wheels 124L are each rot'atively mounted upon a shaft 126. vFor this.pur. pose each Wheel is provided with a sleeve .127 Which forms abearing for the said sleeve 127, as is also "the disk 128 and thetransmission Wheel 129. The Wheel 124, as best seen in Fig. 9 ofthe'dravvings, is dished and is provided at the inner side lof the rimflange With ratchet teeth to receive the free end of the pavvls 130. Theparvis 130 are preferably Weightedto engage the teeth 131 formed on theinner side of the rim ot the Wheel .124. The pavvls, if desired, may bespringfactuated. The pawls are pivotally mounted on adisk 132 Which isdirectly connected with vthe gear Wheel 123, with the teeth of which arenieshed the teeth of the as the raclrbars 119 are lowered the saidpaivls engage the teeth 131 ot the Wheel 124 and advance thevvheel inconformity with Ithe movement ot the rack bar 119 and the type settingbars 101. .When the controlling plunger 107 is released and the typesetting bar 101 andthe barr119 are lifted by the action of the spring112 and the Weight 103, the pawls 130 override the teeth 131, permittingthe Wheel 124 to remaininthe set position. The disk 128 is provided toform an advancing transmission mecha nism between the adjacent 'typeWheels whereby, as in a comptometer, the complete rotation 'of oneWheel' registers .by the movement in the progressive manner the nextadjacent Wheel denoting 'a 'higher arithmetical denomination.-l f

As seen in Fig 11 of the ldrawings there is projected from the side ofyeach disk 128 an offset 133.v Extended ,into thepath of the offset 133is an arm 1311` of `the rocking lever 130. The-lever 136 is mounted on ashaft 137 and is provided at the :tree end with a`weight 138. Intheoperation of the disk 128, moving in unison with thevvheel 1211, theodset`n133 impinges upon and de'- iects the arm 134, riding thereover,when the weight 138 reinstates the arm 134 in its normal position, asshown 'in said Fig. 11.

tion of the lever from which the said arm pawl 139 wlnch'is' rotatif/elymounted on a tended from the side of the lever 4136 toward 'the ratchetyvheel 140, ixedlv secured upon or integrally formed with the Wheel 124.having the printing characters of the' next succeeding arithmeticaldenomination. Each of the pawls 139 is rotated to engage the teeth ofthe ratchet Wheel 140 by means of the Weighted arm 141 with Which it isprovided. Thus it will be seen that as the Wheel 124. makes a completerevolution it causes a movement in the next adjacent Wheel havingprinting characters of the U next higher denomination, a movement' equalto one `of the character printing spaces. In other Words, a completerevolu tion of the Wheel disposed in the unit col- 'umnl will inauguratea movement resulting in the adjustment. of the Wheel in 'the tens columnindicating one space advance of the said ten Wheels. A completerevolution of the Wheel disposed in vthe tens columnresults in a spacemovement of the Wheel dis posed in the hundreds column, and'so on.

' The totalz'z'z'ng mechanism.--Vith` the mechanism constructed andarranged as so far described the operation of mechanicallyf adding acolumn may be performed. It is thought unnecessary t-odescribe ltheoperation, as it is to all intents and purposes the same as employed inthe usual adding .mai chines. As in the said adding machines theoperation of the keys ultimatesin placing in printing position thenumbers on the va rions Wheelsfwhich is the resultant or the 'total oftheadditions O the varioushfcoh unms. In the art as atpresentlidis'closed this resultant or total is printed, and themechanism is then returned to the zero or naught position. In thepresent invention this resultant is duplicated on a second set ofWheels, and if desiredpis retained .after the first set of Wheels isreturned to' the zero or initial position. This operation on the pail;of the present machine permits its eniployment as a listing or addingmachine.

The secondy set of wheels' above referred lto is shown b est in Fig. 1.0of the drawings,` and there designated by the numeral 201. Theperipheries ot the wheels 201 are pro-1 vided With a boss 202 havingformed-there on the printing characters indicatingnu merals similar inform and arrangement' to those carried on the first or lov/er set ofWheels. mounted on the shalft '203, each Wheel being provided with andrigidly lattached to a 'sleeve 2011. The sleeve 2011 is provided With`and the wheels 205 on the upper set of type The wheels 201l aregrotativel'y wheels 206.

operation the wheels 124 arefreset pr re-` turned to their initialposition it is to avoid the resetting of the upper set, or wheels 201,that they are lifted fromv engagement with the lower set, r wheels 205are removed from engagement with 'the transmlssmn It-is to permit theseparation between the wheels .205 and 206 that the Shaft 203 is mountedin the uide slot 207, lshown best in Fig. 4 of the rawings. The shaft203 is pivotallyl mounted in levers 208 disposed at each end of the saidshaft, which levers are pivotally connected at 209. The levers 208-normally rest upon the ins 210 set out from the ends of short evers-211.4 The levers 211 are pivotally connected with the link rods 212. Thelevers 211 are pivoted at 21?). lVhen in the course of operation th'elink rods 212 are drawn downward the levers 211 are rocked to lift theshaft 203 to separate or disengage the wheelA 205 froml the transmissionwheel 206, as seen in Fig.

.4 of the drawings.4 lVhen the operation ofthe levers 211 is reversed,as shown in Fig. 3 of the drawings, the shaft 203 is lowered io permitthe enmeshment of the wheels 205 and 206. To' elevate the shaft 203 inthe manner mentioned is required when the lower set of wheels or theupper set of wheels is to be reset to the zero or initial position.During the operation of the adding or listing and thetotalizingmechanisms`- and the totalization of the same for the purpose of forminga printed record, it is not found necessary to operatively separate thewheels 124 and 201.

ln the usual course of operation of the machine when employing thetotalizing mechanism just above described the paper record is liftedfrom the printing station opposite the set of wheels 124 to the printingstation opposite the set ot' wheels 201. For this purpose the feedini'nechanisni hereinafter described is emp oyed. Fur-I thcr, it will beunderstood that in the usual course of operation, after the total hasbeen ,imprinted on the paper record, the paper is torn from the roll andremoved 4from the machine.

It will be understood that in the operation of adding, the wheels 124are'manipulated to set-np the type characters carried thereby todesignate the sum of the added columns. This sum may be viewed directlyfrom thc front of thc machine, or. may be printed upon a paper record,or both, as hereinaftenset forth. If desired, in this operation ofadding columns the record may be produced by printing each total of eachcolumn after each printing'or lower set of wheels is reset to the zero.or initial position. Each print on the lower set would give thesuccessive totals of successively `added columns. The upper setofwheel-f.

not.being reset a continuous total of the A successivev columns could .be carried so that at' the end-of the operation of adding suc? cessivecolumns" a grand total would be found to have been set up for view orrecord on the upper set of wheels.

-If the machine be used for what is known in the'ibanking business aslisting, where there are printed in successive "order the `amounts ofthe checksfpaid, the lower set of wheels 124 is employed for the purposeot frecording the successive amounts ofy the checks, and the wheels arereset to the initial position after each imprint of the machine of eachcheck, but the wheels 201 not being reset an accumulated total is beingconstantly composed upon the said wheels 201. Thus, by employing thepitesent machine the column total at any point in the operation, may bevisually disclosed. or recorded, by consulting, or printing with, theupper set of wheels 201. At any stage of the operationit will beunderstood that the upper set of wheels 201 may also be reset, eitherto, .correspond with the lower set of wheels or independent thereof.

T he resetting mechanism.-For the purpose of description the resettingmechanism is divided into two separate groups, theI mechanism foroperating thc resetting o1' the lower set ot' wheels 124 being opcrablyA distinctive from the operation ofthe upper set of wheels 201.Therefore there will be first described the mechanism for operatingl thelower set of wheels.

The key pad 301 is provided with a plunger 302. lt is by depressing thepad 301 that the operation of the machine'is inaugurated whereby theupper set of wheels 201 is first disengaged from the lower set of wheels'124. and subsequent to such discigagement the lower set of wheels isrotated forward to the zero 0r initial position and there arrested. Thefirst portion of this operation effects the disengagement ot -thc wheels205 with the wheels 206. purpose the lever 211 is disposed in theposition shown in Fig. 4 of the drawings. The link rod 212 has mountedthereon an overbalancing weight 303.` The weight 30?, is normallysupported by a cross bar 304 to dispose the lever 211 in the positionshown in Fig. 3y of the drawings. The cross bar 304 4is extendedbetween. the free ends of balancing arms 305, at the outer ends whereofis mounted an overbalancing weight 306. The weight 306 is sufficient tomaintain in raised position the arms 302' and cross, bar 304 against theupper end of 'a slot 307, shown in Fig. 5 of the drawings.

The weight 306 primarily sustains the .weight 303, being operativelyconnected For this partition wall of the machine and guidably mounted.in a loop 4309. .The bracket 308 is ixedlyfcennected with 'an extensiona310 which is pivotally connected at 311 .with the rod, 212. The lowerend of the plunger 302 is provided with a p in 312 which pivot- A allyengages the forward end of one of the arms 305.

Vthen the key pad 301 is ole-- pressed by the opera-tor .the arms' 305are rocked on their pivots 313, lowering the cross bar 304 and thebracket 308 supported thereby. The eti'ect of this is to permittheweight 303 to pull on one side of the lever 211 to raise the other .sidethereof against the lever 208 to litt the upper set of type 'wheels andthe wheels 205 thereof from en gagement with the transmission wheels206.

` Simultaneous with the' lift of the lever 208 the trigger plate 314 ispermitted to settle so that the detente 315 each rest upon one ot' thedisks 128 with which each of the wheels 124 is tixedly connected. Eachof the disks 128 is provided, as shown in Figs.

11 and 12, with a nick 142. In the subsequent rotation 'of the wheels124 vand/1i disks 128 the wheels follow the direction shown' by arrow inFig. 11, and the nick 142 on each wheel passes into engagement withthe..

wheels 124 at the Zero station. f v.ihe wheels 124 and disks 128 bywhich gers 318 is provided. Each plunger 318 is superposed in line witha type setting bar ,101, and is mounted in perforations formed in abracket 310, as seen best in Fig. 2`of the drawings. r1`he plungers 318are provided with a foot pad 320 to impinge'upon the type setting bars101 when permitted. Normally the plunger-s 318y and'toot pads 320thereof are suspended above thevtype setting bars 101 by means of a pin321 with z which each plunger is provided. Each pin rests upon and isseparated by the cross bar..

304, as isshown best in Fig. 5 of the draw` ings. 1 Each plunger 318 1sprovided with a weight 322' adjustahly mounted thereon,

is'removed as a support of the plunger, to

101 to voverbalance the weight v103 thereon, and to ,depress-the variousrack bars 119 torotate'the wheels until each is separately tgaging thedetent 315 to which it is assigned. Thusv it will. be seen' that whenthe operator. depresses the key., pad'v 301 the -wheels 201 are'4disengaged from the wheels 124, the trigger plate 314 is dropped' intoposition to engage the nicks 142 ot the disks 128, Aand the wheels 124are each independently rotated forwardly and arrested in the initiall orzero position. lhen; after the operation of resetting 'the lower set ofwheels 124 the key pad 301 yis released, the `weight-306 lifts the saidkey pad, the bracket ithereon to rock the lever 211 tolower the lever208 and shaft 203 carried thereby, permitting the rengagement of thewheelsj205 and206.' Although the wheels 124 have, by this operation,been -reset to the zero or wheels 201 remain inthe position to whichvthey were advanced prior to the initiation of the resetting operation.The further manipulation of the key pads to compose 7the wheels 124 forfurther operation resuits in a duplicate or added advance of the wheels201, thereby increasing the .total presented by the said wheels 201.

-rlo edect the restoration of the wheels 201 depresses the key pad 323.The pad 323 is connected with theplunger 324. In' Fig. '3 of thedrawings the plunger 324 is shown in part, being broken awa'y todisclose the' The ,lower end of the plunger 324is provided with a pin325 to which is rigidly attached' aflexible cable 326. T he cable isreeved over the pulleys 327, 328, 329, 330 and 331, and is attached tothe lower end of a plunger 334. ,'.lhe .pulley 332 is mounted on the end-o-a bracket extended tro'm the lower end of a tube 336.

The plunger is slidably mounted in the tube 336. At the upper end ot theplunger it is providedwith a bracket 337v to limit the upwardthrtmfthereof. Extended from the opposite side of the plunger 334 is apad 338 disposed in the path of a pad339 extended from the side of thesecond plunger 340. The plunger 340 is slidably mounted. in a tube 341.end with a pulley 342 over which is passed the cable 343 to suspend theplunger 340 at the lower end thereof. The plunger 334 lifted by a weight335, said weight being 'suspended bythe cable 344 which is reeved overthe pulley 332 and connected to the lower end ot' the plunger 334. Thiscondepress the same upon the type settingbars arrestedby the nick 142 ofthe disk 128 enl308, `the rod 212 and-weight 303 carried which weight issufficient, when the bai'-304 -initial position, it will be remarkedthat the i fw@ to the initial or zero position the operator plunger 302and parts connected therewith.

The tube 341 is provided at the lower Istruction is best seen in Fig. 3of the drawings where the cable 344 is shown as broken Iaway to exposethe cable 326 in line therewith-and behind the cable 344.

The lower end of the plunger 340 extends below the tube 341 and hasattached thereto the free v end of the cable 343.

At the opposite end of the cable 343 is attached the weight 345.

Pivotally connected at the upper end of the plunger 340 a rocking lever-346.

.1t the outer end of the lever 346 is provided a segment 347. The' teethof the ment 347 are meslied with the -gearwheel 348. The gear wheel 348is rotatively mounted on `the shaft 349, andfhas tixedly -connectedtherewith a ratchet-kfiwheel 350.

The teeth .of the ratchet wheel 350 are pitched, as shown in Fig. 3, ina forward direction lto engage the pawl 351 pivota-lljv mounted on asecond ratchet' wheel 352.

`The wheel 352 isrtixedly mounted on the shaft 349, and is' 'providedwith teeth pitched in the reverse direction to those provided for theteeth of the wheel 350 to engage the Ipawl 353 ywhich is pivotallymounted Von thefranie of the machine. l

As seen -best in Figs. 2 and 7 of the drawings the shaft 349 is providedwithy a series 'of friction disks one such disk being `provided for eachof the Wheels 201 and disposed in line'therewith. Then in the course ofoperation the levers 203 are lifted the peripheries of the wheels 201impinge upon the peripheries of the disks 355 to be rotated thereby forresetting the said wheels i to thezero point. The frictional engageicertain of the 'disks on the 'top ment thus provided a'llows forslippage of wheels 201 if the same be arrested by the detents Thedetentsl 356 are extended from the trigger plate 357 which is. tixedlymounted on a shaft 358, best seen in Fig. 2 of the drawings. The disks359 areeach provided with a nick 360 adapted to receive the toothed endof the detent 356. T he opera tion, arrangement and construction of thei detents 356 resemble to all intents and pur lposes that of the detents315. lt will he, noted that the tixed disposition of the plate 357 anddetents 356is such that the disks 359 are liftedzinto contactualrelation with the said detents.

lTo lift the shaft 203 and the wheels 201 the lever 363 is rocked on thepivot 209. For this purpose the lever 363 is provided With-an arm 361 atthe outer end whereof is provided 'a lweight362. To engage Vthe lever208 and to lift the same the lever 363 is provided with a fin 304. Theinterlock- -ing arrangement thus provided is best seen' I in Fig. 3 ofthe drawings.

The operation ofthe resettingmechanism for the upper set of Wheels 201is as follows:

The operator by depressing thc key pad y323 and the plunger 324connected there with draws upon the cable 326 and therebydraws downwardthe plunger 334. The plunger334 being removed from under the arm 361permits the weight 362 to rock the lever 363 to lift the shaft 203 andthe wheels 201 mounted thereon. The., lift of the wheels thus impartedis sufficient to force the top hearing peripheries thereof against thedisks 355 and the friction faces thereof.

By reason of the separation between the pad 338 and 339 an amountof lostinotion is per initted between the plungersI 33t and 349 whereby thewheels 201 are moved against the disks before the said pads are broughtin contact. From this point on the depression of the "plunger 334. whichcontinues, depresses the plunger 340l and the outer end of the lever346. The rocking of the lever 346 on the shaft 354 rotates the wheel 348and the ratchet. whee 350 connected therewith. Asahove explained. theresult ofthe rotation in the forward dii-eos tion of the ratchetwheel350 rotates the disk-s The rotation of Vthe disks 355 is such as tocause a' complete revolution ofthe wheels 201. 'After the resetting hasbeen accomplished the operator releasing the key pad the weights 335 andV345 operate to return the wheels 201 to. their normal positioinlliftingthe' end of the lever 363 carrying the weightl 362 and depresses` thesegment 347 of the lever 346. the ratchet. wheel 350 rotating Abackwardunder the pawl 351. To prevent the movement hackward of the disk thepawl 353 engages the teeth of the ratchet. wheel which ratchet wheel isfixedly and operatively connected with the said disks 'The Vrz'ntz'nrand (2c/Zim mech/miams.

The printf/lig 7n,ec1ansm.-So far in theI description no particularattention has been paid to the printing mechanism. although ,occasionalreference has been made thereto.

The machine is sodesigned ythat the amountsv .composed .or set' up lonthe wheels l'l-L-and lwhich is extended .from the shield 401. The

rollers 407 are rotatively mounted on stud shaft 409 which is rigidlyattached to the shield 401 adjacent the upper edge thereof.

'The rollers i0? run on the track ell() whieh is extended between theends 'ot brackets Hi8 provided to support the said track. it-igidly',attached to the-shield 4:01 a handle il which is extended through slotllZ formed in the top ot the easing; 'tor the adding mechanism. Theslot. 412,- as seen in of'the drawings, is formed in the extension tofthe casing or traine Lil-i. Bv

grasping the handle Alll the shield -lOl anil.

parte eonnected therewith may be moved to @over the' Wheels 1A and .201and operating mechanismtherefor, or be placed in the extensionfli'lthereby exposing the said wheels to view. The Wheels' are thusexposed to view whenever it is desired by the operator to vsee whatvthenumber set up by the niaynipulation ofthelease is, whether the saine he.in theiipper. or totalizing` wheels or in the lower or adding wheels.

Disposed adjacent the lower edgeot the shield flOi, and rotativelymounted in the brackets 415, islapa-per spool 416. Adjacent the upperedgeof the said shield, and

preferably -in lineV `with the spool 416, :is a

feed miliardi-7'. 'The roller il? is mounted.

-i-Pil and 436. VIn this manner is providedv automatic leed for thepaper passing from the spool-.416v upward and out of the niachineunderthe eedroller 4-17 to operate lwhen either set of wheels is usedtor printing` on the paper.

v'lire paper in paesi'ng from the spool L'l-lG io the roller All? isheld under a faire platell't. The tace plete 426 is suitahiy secured iothe shield 401, and has rigidly secured .thereto the bearings 427through which are (attendrai tlie'roekingr shafts ing' sha'its 428 aresimilar in i'hateaeh has` mount/tui rigidly thereon a series of hammersfiil, 'earh hammer .being provided with f head 430 formed of anysuitable material7 that preferred by me being' rubber.

t ihe end of `each of the shafts 498 is 'formed a braelmt it upm whichresi the 't'notextensions and 4:32). l`lie extension `tf2 extended tronithe end ot' a plunger at the upper end whereof is niounted'a key paddwhich, as shown inlg. l ot' the 'trame Llla and bears the inscriptionlower print". The extension 451i is set ont troni the ilunffer 436. then) rond whereof is l e, l

"provided, with `a key pad 437, vi'hereonv is provided with a rael'barei.ie-i. drawings, is eitended from the .ti-ont ot vthe the inscriptionupper print, as shown in Fie'. l ot' the drawings.

'llul depression by the ope 'ator ot either ot the key pads itor 437ultimates in the rorltinn ot the upper or lower shaft 428 resiieetively.Vhen the shaft t28 is thus rocked the hammers are Withdrawn troni the'printing' ribbons YLLBS, Ll83'-wlrit-.h are stretched across the faceof` the hammer heads 430. -When the keys arereleised the spiral springs439 return the shafts 528 to their norinal'position, violently strikingthe heads L30 carried on the hammers 429 upon the printing ribbons 438,pressing the same and the paper 'held between the shield 401 and thetace platei againstv the type set u p in Compositing order on vthe setsot wheels 12e and 201; The plate L'is provided `with a series ofopenings 440 through which may be extended the ribbons 438 when thusstruck by the spring actuated hammers. The said openings 440 are in linewiththe shafts on which the type 'wheels are mounted. The ribbons 38are-mounted Vin the spools ill which may be manually operated by meansof the milledhea-ds-442. No automatic leed t'or the ribbons is disclosedin the present ,.invention, it being unnecessary at the present ktime toemploy such." Any suitable vtorni may hereafter be adopted.

it will be iuii'lerstood that the printing mechanisms above describedare operated only when the shield 401 and plaie lt are disposed in theposition shown in Fig. 5 ot the drawings. To permit the depression ofVthe key pads 435 and 437 the frame lli is provided 'with the slotsJill-. lt will be noted by relrreiice toA Fig. 5 that. when the Shielditil and plate 426 tariied thereby have been moved to one side to exposethe top wheels the key lpads 435, 437 and 4&4 are moved into thehorizontal slot 445 whereby the manipu lation of the said key pads is-prevented un til the printing mechanism 1s disposed in' alineuient withthe two sets of adding and totalizing wheels. f

I'le feedz'ny/ fmecimrism'l) adjust the paper `irrespective of theoperation ot' the rollers there is provided a key 4:22 which is 423,together with.' the wheel 424, are best seen in Fig. llfot the drawings.Thefwheel The rack barl 421i is loosely mounted on the shaft M8 andieifaifsi'aritly -in mesh with the teeth of the rack bar lilxtended fromand pivotally mount-vd upon the"shatt 4-18 are the pawls #i125Aivnioh-operate by gra vltyito engage the internal .ratchet teeth formedon the wheella this manner 1s provlded means for alternately engagingand moving the shaft 18 by the wheel 4112i which is constant-ly engagedwith'the rack bar 423 to rotate in both Arotary directions eoneordantlywith the operation of the rack bar 423.

By operating' the key 492 one or more timesiy as desired,

the operator ma \Y rotate the shai't 418 and the feed roller 417. tolift the paper independently of the ol'ieratioii of the adding andtotaliziimr mechanisms.

l laving tliiis described my iiivent'iomwhat l claim as new and desireto secure by Letters-Patent iszi Y l. A calculating machine having aplurality of adding; mechanisms disposed in parallel arrangement; meansfor operatingA said adding niecliaiiismsfin unison; and a' printingmechanism for transferring,.im-f'l pressions ot the. compositedcharacters Cifsaid adding mechanisms toa proper tney dium, said printingIiiechanismheingJre-fl movable to disclose the adding mechanisms.. Q. Acalculating-4 machine having a plurality of adding Amechanisms theWheels.`

whereof are provided with'printing characters; a printing mechanismbeing disposed vin frontof saidadding mechanisms to im?.

print the composited characters on a properl medium, said printingmechanism being mounted on a member remoi'able to .expose the saidcompositing characters.

3. IIn a calculating mac'hine, a calculating mechanismhavin an addingmechanisirh'a plurality of key ars'each operatively connected'with torotate one of the wheelsof said adding mechanism; and means connectedwith each of said key 4bars for ope'ratingthe same te the full limit tocomplete' the rotation of each wheel to present'the. same in theinitialposition.

4. A calculating machine having an a ding mechanism provided with' aseriesy of operatively connected. 4progr,ressively actuated Wheels; aplurality .of key barsfeach operatively connected with one of saidwheels to rotate the lsamegia plurality of.

.weighted members each adapted to rest upon one of said keyV bars todepress thel same tothe full limit thereof; and means for suspendingsaid weighted members.l

5. In a calcnlating' machine of the character set forth, a plurality ofoperating key. barata plurality of weightl carrying 'plun- 'gers eachsupported above one of said key bars; a siipppiting rack for saidphingers;- and means or depressingsaid rack to vper mit said pliingersto depress said key bars.

ti.. In a' calculating machineyof the characterset forth, a plurality'ofoperating key. bars; a plurality of weight carrying plungcrs each'supported above one of said key bars; -a supporting rack .for said pliiiigers; means "for'depressing said raclr to permit said .plimgers todepress said key bars; and

transmission mechanism lic-tiveen each oi said key bars and number wheelot a calculating mechanism adapted for the rotation of said wheel in onedirection only.

7, Ina calciilating machine et the character set forth, having twonormally connected adding mechanisms; means for lifting one of saidadding mechanisms out oi engaffe- `ment withv the other of said addingmechanisms; a resetting mechanism 'for thelifted addingmeehanism havinga series of friction Wheels adapted to engagethe wheels of.

`rnechanism from those of the first adding mechanism; means forresetting: to initial 'position the wheels of the first adding inech-'anism; and a paper feeding; and printing.

mechanism juxtaposed to said adding niechanisms adapted yto at willobtain impression from the wheelsv of either of said adding,` mechanismswhereby listing and total printings-mayv be edected. l

9. In a calculating machine, an. adding mechanism having a series ofoperatively connected'and progressively actuated wheels rovided on theperiphery thereof with numeral characters; a second .adding nicchanismthe .wheels whereof are normally operativelyconnected with`thc wheels ofthe rst adding mechanisms means for disengaging the Wheels-ot` thesecond adding mechanism from those ofthe first adding mechanism; meansfor resetting to initial position tliewheels ot' the firstadding.iiieeliaiiisim a paper feeding mechanism .to giiide paper injuxtaposed relation to the wheels oi both said adding n'iechanisins; aplurality of iiidependently operated printing,l mechanismsI mounted, onsaid paper feeding mechanism to obtain in'ipression from the wheels o'leach of said `aihlinp; mechanisms; and a plurality of hiking ribbons onedisposed opposite the compositing station of each of said addingmechaiiisms.l

10. In a calculating machine, an adding mechanisml havingr a series ofoperatively connected and progressively aetiiated.`wheels provided onthe 'periphery thereof vwith numeral characters; it second addingmechamsm the vwheels whereof` are normally operatively connected with' thewheels ofthve ies y lio" position the wheels of the first a dingiiiechiy anisin; apaper feeding,f mechanism to guide.

paper in juxtaposed relation to the Wheels of both' adding mechanisms; aplurality of independently operated printing mecha- .nisms mounted onsaid paper feeding mecha nisin o obtain impression `from the wheels of oa ih of said adding mechanisms; a plurality oi inning ribbons onedisposed opposite the compositingI Station of each of said addingnieohanisms;` and a plurality of manually selective actuating mechanismsfor said printing mechanisms.

1l. In a calculating machine having a plurality of rotary tally members,a plurality of key 1oars each bar being operatively connected with atally member to el'eet the l y Copies of this patent may be obtained forof said key bars to move the said x'connected,

end thereof through a series of equally increased arcs.

In testimony whereof I have signed my name to this specification'in thepresence of two subscribing witnesses.

i NELSON STAFFOISD.

lVit-nesses E; F. MURuocK, JOHN P. Davis.

v cents each, by addressing the Commissioner of Patents. Washington, D.C.

